Home / 104,090.28-143,525.70-82,870.44

Finding the Fourth Proportional to 104,090.28, 143,525.70 and 82,870.44

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Solution

The fourth proportional to 104,090.28, 143,525.70 and 82,870.44 is: 114,266.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,090.28 : 143,525.70 = 82,870.44 : x
  2. Step 2: Convert to fraction form
    104,090.28/143,525.70 = 82,870.44/x
  3. Step 3: Cross multiply
    104,090.28x = 143,525.70 × 82,870.44
  4. Step 4: Simplify right side
    104,090.28x = 11,894,037,910.31
  5. Step 5: Solve for x
    x = 11,894,037,910.31/104,090.28
  6. Step 6: Final answer
    x = 114,266.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.